I don’t know of a wall calendar at this time, but in terms of a diary, The Ancient Egyptian Daybook is available in a Perpetual Planner format. It’s a spiral bound diary in the Egyptian calendar with the holidays from the Daybook, and space for you to enter the Gregorian dates for that year.
I have the Daybook itself and it is extremely thorough. New holidays are always coming to light so I imagine it will be revised eventually, but it’s absolutely full of information.
The only downside IMO to the Perpetual Planner is you have to calculate Wep Ronpet yourself, but if you have a date you already like to use for Wep Ronpet, that’s not a huge problem. (And ofc it’s not a wall calendar. I think there was briefly a wall calendar version but it is no longer sold, might have been a kickstarter perk, I don’t remember now.)